Percentages + time - practice problems
Number of problems found: 290
- Non-transferable 5383
What percentage in a non-transferable year are Saturday and Sunday? - A tip
Determine a 20% tip for a dinner that costs $65.00. - Bulbs
The probability that the bulb can operate 4000 hours is 0.3. What is the probability that exactly one of the eight bulbs can operate 4000 hours? - Minutes 6069
How many minutes is 60% of two hours? - Two sides 2
Two sides of a triangle are 12 and 15, and the perimeter is 40. Find the other side. - Break time
Calculate how much percent of school time is spent on breaks. Calculate data for the whole week. - Play the flute
There are 100 members 12 play the flute. What % that plays the flute? - Efficiency 4072
What kind of work did the mixer with an efficiency of 30% do when it did 4.5 kWh of work? - 15 teachers
Fifteen teachers teach for a combined amount of 128 days over 64 days. What is this expressed as a percentage? - The total 2
The total price of a car is $17,050 the selling price is $16500. What was the sale tax - Simple interest 3
Find the simple interest if 11928 USD at 2% for 10 weeks. - Percentage 83077
The bank increased the interest rate from the original value of 4% to 5%. What percentage of the original value of the interest rate was its increase? - Christmas holidays
How many percent take Christmas holidays lasting 18 days from a school year that lasts 303 days? Round the result to two decimal places - Car value
The car loses value by 15% every year. Determine a time (in years) when its price will halve. - Isosceles triangle
Find the area of an isosceles triangle whose leg is twice the base, b=1 - Percentage increase
What is the annual percentage increase in the city when the population has tripled in 20 years? - Equilateral triangle
Calculate the side of an equilateral triangle if its area is 886 mm². - Distribution 67074
The time required to complete the test has a normal distribution with a mean of 50 minutes and a standard deviation of 10 minutes. What percentage of students take the test within 30 minutes? - Percentage 8921
The clerk will work 178 hours a month. She missed 54 hours due to illness. What percentage is it? - The encore
The rock band had a 15-minute encore at their concert, which accounted for 12% of the total length of the concert. What was the total length of the concert?
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